Steering wheel off center, car makes loud groaning noise whenever decelerating or turning right.

I was on the interstate on my way home from work in my 1996 Jeep Cherokee. It was raining pretty terribly, and I ended up swerving out, spinning to the right side and sliding the left end of my car into a guard rail, pretty much totalling the left headlight and taillight. I thought this was all of the damage, until I started driving the car. The steering wheel is out of alignment, as it's now permanently turned 90 degrees to the left, so when I'm driving straight it's completely horizontal and facing the left. Also, whenever I decelerate or take a right turn, my car makes an awful, loud groaning/grinding noise. Any idea what I could have possibly done to my car?

PS. I also can't close my trunk now, either.